Glutathione Metabolism and Its Implications for Health ScienceDirect The reason some people stay sick despite treatment often comes down to one molecule. Glutathione is the most abundant antioxidant inside your cells. It protects mitochondria, recycles other antioxidants, and repairs The changing faces of glutathione, a cellular protagonist., Volume I Frontiers Research Topic Glutathione is a natural antioxidant your body makes, and it can influence melanin production which is why its sometimes marketed for skin brightening., Oral supplements are mostly broken down in